Home / 20,196.54-27,866.70-12,126.51

Finding the Fourth Proportional to 20,196.54, 27,866.70 and 12,126.51

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Solution

The fourth proportional to 20,196.54, 27,866.70 and 12,126.51 is: 16,731.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196.54 : 27,866.70 = 12,126.51 : x
  2. Step 2: Convert to fraction form
    20,196.54/27,866.70 = 12,126.51/x
  3. Step 3: Cross multiply
    20,196.54x = 27,866.70 × 12,126.51
  4. Step 4: Simplify right side
    20,196.54x = 337,925,816.22
  5. Step 5: Solve for x
    x = 337,925,816.22/20,196.54
  6. Step 6: Final answer
    x = 16,731.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.